Rising ALP

Question: Who knows much about a rise in ALP (Alkaline phosphatase). My doc seems more concerned than I am, and she doesn't tell me a lot about her thoughts. Guess I should ask, eh?

My ALP was great in 2014 (maybe 90 ish?), but it was right at the upper limit when I tested in 2016 (maybe a bit above 130; I can't remember). A 2nd test showed it creep up a tiny bit (maybe 140). My doc tested for the isoenzyme (?) that indicates bone ALP, and that was negative. So she ordered a liver CT, and that was normal. But, even when it crept down 2-3 points, she wanted another test. I said "Meh, let's wait, it's not that high" (everything I read seems to say we shouldn't be concerned until it is MUCH MUCH higher). She let it go.

Then I read this crazy thing at livestrong.org (not a very good reference site, imo), that said an increase (and it was 50%) in a cancer patient is commonly believed by docs to be a recurrence or mets. What? That's not what I read anywhere else; way to scare me a bit--and I'm no alarmist. I mean, gosh, I'm 12 years NED for goodness sakes.

I'm sure we'll check again next year, but I wondered what, if any, experience y'all had with this. My searches on the board didn't turn up a ton of worries, so I feel better. FYI, none of my other liver enzymes were high, nor was any other CMP blood work.

Thanks for any experiences you had.

Brenda